Frost dates in Canyon County, Idaho
The average last spring frost in Canyon County falls Apr 23 to Apr 30 and the average first fall frost Oct 9 to Oct 18, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a. Places: Caldwell, Greenleaf, Middleton, Nampa, Notus, Parma. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 83605 | Caldwell | Apr 29 | Oct 13 | 7a |
| 83607 | Apr 23 | Oct 18 | 7a | |
| 83626 | Greenleaf | Apr 24 | Oct 9 | 7a |
| 83644 | Middleton | Apr 30 | Oct 17 | 7a |
| 83651 | Nampa | Apr 29 | Oct 13 | 7a |
| 83656 | Notus | Apr 27 | Oct 9 | 7a |
| 83660 | Parma | Apr 27 | Oct 9 | 7a |
| 83676 | Wilder | Apr 24 | Oct 9 | 7a |
| 83686 | Nampa | Apr 29 | Oct 13 | 7a |
| 83687 | Nampa | Apr 29 | Oct 13 | 7a |
Nearby counties
Ada County Payette County Gem County Owyhee County Boise County Washington County
All Idaho counties · Download Idaho frost dates (CSV)
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